Assign mass to rigid body with no material input

Asmae Birouk
Asmae Birouk Altair Community Member
edited July 2021 in Community Q&A

Hello,

I am doing a simulation of an impact test. I created a sphere body in Geometry and assigned the following preoperties (entity: shell, Type: Rigid body, material: none). The sphere will impact a horizental plate while on free fall. I want to assign a mass to the sphere without assigning material since I am only interested in the reaction of the plate. I know that in the 2021 version, there is an option to input mass when creating the property for the rigid body, but I can't find it in the 2020 version. 

Question: How to assign mass to a rigid body without assigning material in the 2020 version?

Thank you!

Answers

  • Rogerio Nakano_21179
    Rogerio Nakano_21179 New Altair Community Member
    edited July 2021

    Hi

    I do not know how to do it in Simlab, but for the scenario you explained you could use the /RWALL/SPHER and define mass and initial velocity to it.

    If you use shell mesh and a /RBODY, the material and property data need to be defined for the contact interaction.

    If you would like to take only into account the mass defined in the /RBBODY, you can set the ICoG=4

    I hope this is helpful.

    Regards

Welcome!

It looks like you're new here. Sign in or register to get started.

Welcome!

It looks like you're new here. Sign in or register to get started.